5933 dry probably a little under 6500 loaded up. Jayco Jay Flight 267 (26 footer). My FIL got significantly better with their 32’ TT, think he was 12 which is my unloaded mpg more or less.
6.7mpg under load sounds right to me. What does your camper weigh and how long?
When im towing 70-75 mph, my dually cummins truck will get low 9's high 8's if there is wind or i push it.
Is what it is.
The guys that say they get 14mpg towing 10k lbs are full of shit.